Air-compressor.



S. B., G. E. dz W. R. HILL.

AIR COMPRESSOR.

ruruoulon nun r123. 11, 1911.

1,005,212. Patented Oct. 10,1911.

3 SHEETS-1113B! 1..

, anuwwto'd JtgrlgnggB/lg'll Clzmze E. Hall dawn:

liq-s runs. In. Lung, AIIIIIII. n a

S. 3., O. E. & W. R. HILL.

AIR UOMPBEQSOR.

uruouxon FILED FEB. 11, 1911.

1,005,212. Patented 'Oct. 10, 1911.

2 BEHETBSHBET 2.

um/Mo. dtirZz'ngB. Hill Climz'e 1?. H278 William 2?. Hi1;

Sum;

UNITED STATES PATENT OFFICE.

STTRLING B. HILL, CLIMIE HILL. AND WILLIAM R. HILL, OF SEATTLE, WASHINGION.

AIR-COMPRESSOR.

pri'ncifple may be employed to compress air..

lrther object of this invention is to provide an air compressor of the above character, which is positive, continuous, and

automatic in o eration.

..A further 0 ject of'this invention is to rovide an air compressor including a hysraulic ram, and means for automatically varying the amount of air conducted to the ram to be compressed, whereby as the pressure'rfails in the air storage tank said means is operated to admit a larger amount of air into. the ram.

Other objects and advantages of this in; vention will be a parent during the course of the following escr'iption.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same, .Fi re 1 is a central vertical sectional view ta en through a device illustrating our invention. Fig. 2

is an enlarged plan view of'the air discharge valves, Fig. 3 is a side view of the same, and its associated members shown in section, Fig. 4 is a plan view of the waste valve structure, Fig. 5 is a central vertical sectional view taken through the same, Fig. 6 is a longitudinal sectional view taken through the air supply pipe, and Fig. 7 is a side view of a difl'erent form of airsupply pipe, together with automatic means for controlling the outer valve, said means being shown partly in section and partly inelevation.

In the drawings wherein is illustrated a preferred embodiment of our invention, a

hydraulic ram is shown, comprising a central body casing 1, having one side thereof provider] with a flanged nipple 2. which is adapted for connection with a drive pipe,

Specification of Letters Patent.

Application filed February 11. 1911.

Patented Oct. 10, 1911. Serial No. 608,076.

(not shown). The lower end of this body casing is provided with a flanged nipple 3, which is suitably connected with a waste pipe 4. The upper end of the body casing 1 1s rovided with a flan ed nipple, 5, upon whici mounted a preferably cylindrical u afar-collecting receptacle 6, which is secured thereto by any suitable means. The lower end of this water-collectin receptacle is partially closed by an ,Illlllllfill' bottonr 7, centrally upon which .is formed an n standing preferably cylindricalcasin 8. This casing 8 is concentrically arrange with relation to the casin 6, and extends downwardly below the annu ar bottom 7 to form an annular flange 9, which snugly fits within the nipple 5. The casing 8 forms in effect a continuation of the nipple 5. The casing 8 has its upper end closed by a head 10, secured thereto by any suitable means. This he d is provided with a suitable number of 0 ,enings 11 formed therethrouglq, within w ich openings are disposed spiders 12, having suitable connection with said head 10. The passage of material through the openings 11 is controlled by upwardly openingvalves 13, which are rigidly mounted upon stems 14. Rig-idly mounted upon the upper surface of the head 10, is a large spider 15, having openings-16 formed therethough to slidably receive the stems 14. The lower ends of these stems are movably mounted within openings 17, which are formed through the spiders 12, as clearly shown in Fig. 3. Dis

posed upon the upper surfaceof the head 10 are packing rings 15, surrounding the openings 11 and engaged by the valves 13. The valves 13 are urged into engagement with the packing rings bycompressible coil springs 18, as shown.

' The discharge of water through the nipple 3is controlled by a waste valve structure, comprising a plurality of annular valves 19 and 20, the valve 19 being disposed above the valve 20 and spaced there- 'from in concentric relation. The annular valves 19 and 20 are rigidly connected with preferably diametrically disposed pairs of curved rods 21 and 22 respectively. as shown at 23. The pairs of curved rods 21 and 22 are bolted together and with a vertically movable disk-valve 24. as shown 25. The valves 19 and 20 are disposed-outwardly of and have slidable engagement with annular superposed spaced valve-seats 26 and 27, recollecting receptacle 6 and the cylindrical spectlvelv. The annular valveseats are casing 8. The inner end of the ipe 53 disreferably cast integral with a s ider 2?,thc charges through a ring 54, to w llCll is pivower ends of the diametrica 1y arranged 'otallyconnected an inwardly openin check 5 anns of which have connection with a ring valve 55, as shown at 56. This chect valve '10 28 which is connected with thenipIpIeengages a acking ring 57. The anm'unt o. 3 hy means 0 screws 29, or the like. he air supphc through the pipe-53 is regulated ring 28 serves as al'valve-seat for the valve by. a rotatable valve 58, having screw- 20. The valve-seats 26, 27 and 28 have rethreaded engaglement with the outer end 0. 1o ectively,packingrings 30, 31, and 32, suitthe pipe 53. his valve is provided with 75 ,8 1y secured upon the upper faces thereof, open ngs 59. formed therethrough. wBy r0- as shown, The annular valves 19 and 20 tating the valve 58 the openings 59 may be have 'acking rings 33 and 34 respectively, partially closed or opened to regulate thesuitab y secured upon their upper faces, amount of air passing through the pipe 53.

which packing rings extend inwardly be- In Fig. 7, we have shown automatic mean 80 yond such v ves for engagement with refor re lating the amount of airsup ln-l duced outer portions of the valve-seats 26 througi the,pipe 53. In'this form 0 the and 27. The spider 27' has rigid connection invention the pipe 53 may preferably be at its upper central portion with a vertical curved and has communication with the inrod 36, and a sleeve-37 is slidably mounted terior of the upper end'o'f the cylindrical as uponthis rod, as shown. The sleeve37 has casing 8. The collecting receptacle 6 is screw threaded engagement with the diskslightly modified to. afford a space for the valve,- as shown at 38. Disposed above the -pipe 53. The passage of air through the disk-valve2'4 is a spool 39 which has screw pi e53 is controlledby a valve structure 60.

threaded-engagement with the sleeve 37, as w ich is operated by a crank 61. This crank 90 shown. The upper end of the vertical rod carries a in 62 o crating in a slot 63. which 36 is slidably mounted within an opening is forme throng a link 64. This link has formed through the inner end of a stop-arm its upper end pivotally connected with a 40, which has its outer end provided with an rod 65, havin connection with a piston 66,

0 ening 41 formed therethrough, for rotatuv which is slida 1y mounted within a cylinder 95 b yreceiving a cylindrical and ortion 42 67. The cylinder 67 has its upper open end of a bolt 43. The lower end of t e portion screw-threaded into the collecting receptacle 42 is provided with a washer and nut 44 and "6,, as shown at 68. The rod 65 operates 45, re ect-ively. The bolt 43' is .screw through a nut 69, which is externally screwthreade ,through'the body casing '1 and threated for engagement'with the inter; 10o

' may be rotated to raise and lower the stop-' 'nally screw-threaded lower portion of the arm 40. The s 00]"39 carries shock absorbc linder 67. The downward movement of 'in'g material 46 upon its upper end and such I; e piston 66 is opposed by a cmnpressible material is also secured upon the spider 27 coil spring 70, having engagement with the adjacent the rod 86. The limit of upward nnt69. It will thus be seen that the tension 105 moveinent of thedisk-valve 24 is regulates] of this coilspring ma be varied by rotating by-the relative position of the strp'i-ar n 4 the nut 69. From t e-construct ion of the Dis osed' adjacent the lower'endo theis olv above referredto parts, it isvobvious that 39- 1s a ileaf-s'priiag -;46, the inner en of whei'l'ithe air pressure in the collectin'g'recepwhich has slotte engagementwith. the taclefi reaches a certain degree, the piston 110 sleeve 37. The leaf-spring is formed of a .66 will be forced downwardly .to oscillate the pluralit "of spring leavesn 1 The outer end valve structure 60, whereby the air supply of the eat-spring 4 6, is disposed undera through the pipe 53 is reduced-proportionshoulder .47 formed upon the dasing'l. The; ally. As the ressure'falls in the collecting leabspring' 46 .-is formed of-a plurality of receptacle 6,' o-piston 66 is raised by the 1 spring leaves -48, pas above stated, which s 'ring 68 and a larger amount of air 15 sup-- ca'rryplates .49, said plates being-secured topied through the ipe-53. I

clamps 50." The lowerfpl'ate49 xs The lower close end of the collecting. re p'fovid' withacurved recess to receive theceptacle 6 (see Fig. 1) is. provided with a u cad of'a bolt 51, having screwscrew-threaded opening for receiving a sec-120 ,f'd egfmg mentwith the casmg .1, and tion pf pipe 'll, whic its upper and provided than-axial opemng 52,formed internally screw-threaded ffor' .enspgement .Thezleaf-spring s tensioned' witha stationary guide l72-,fwhi is .ap-

, "th dis walve fis ppmuost pronmatelyX-shaped incr f-se'cticn. This 6.0--."" I The? on of '.the lea spring guide carriesacincular-headfi' about which 6 manipulattngbtheybolt 1S slIdablv-mounted' an annular 'valve [4.-

1 ive ename d-sen e i e -v e m ss packing i g tlimopen ngkm. j'l fheval'vs 14-; 'ibi'pressure balanwdl The the some :the nected with an arch 76, pivotal con 3 nection with a link 77. This link has its upper end pivotally connected with a horizontal swinging rod 78, which in turn is pivotall connected with a stationary bolt 79, as s own at 80. The swinging rod 78 extends across the head and the free end thereof is connected with a float 81, which is disposed within the annular space of the collecting rece tacle 6. An air pressure storage tank 82 is is osed above the collecting receptacle 6 and has free communication t erewlth. The lower end of the rece tacle 82 carries an annular flange 83, whic is suitably secured to a corres nding flange 84 carried by the u per en of the collecting receptacle 6. T e compressed air is discharged through an o enin 85 intoa suitable pipe (not shownl T e opening 85 is disposed near the upper end of t e receptacle 82. The upper closed end of the receptacle 82 is providedwith a pressure equalizer or safety valve 86 of any well known or preferred type. 9

In the operation of the device, assuming that the waste valve is open, as shown in Fig. 1, the water in the drive pi e will be in to travel and flow through sai 'aste va ve to discharge into the ipe 4. As the water increases in velocit t e same by impinging against the diskva ve 24, will close the waste valve. The pressure then rises in the casing 1 and said waste valve is retained in its closed osition. As the water is discharging througli the waste valve, as above descri e the same creates a partial vacuum in the casin 8, whereby the check valve 55 is .unseat and said casing 8 filled with air. As soon as the pressure begins to increase in the casin 8, caused by the waste valve being close as above described, the check valve 55 will be closed. As the water rises in the casing 8 the air contained therein is compressed and forced past the normally closed upwardly opening valves 13., T1113 compressed air is collected within the receptacles 8 and 82. Should the water also as the valves 13, the same will be collecte in the lower portion of the rece tacle 8. When a certain amount of water is collected within the receptacle 8, the float 81 is raised and the valve 74 raised, to discharge the water from the receptacle 6. It will thus be seen that automatic means are rovided to prevent the amount of water held by the receptacle 8 55 from exceeding a. certain amount. As soon as the velocity. of the water in the drive pipe falls 011', the ressure in the casing 1 is accordingly re need so that the leaf-spring tion. The operation is 'then re at as above described. The amount 0 air-supplied into the upper end of the casing 8, may

reulated by t e operation of the valve 58 (sec ig. This supply of air may be 6 automatlca y controlled according to the passage of the water through may return the waste valve to its openxposr 1. In an air compressor, the combination with a hydraulic ram structure including a casing and a waste valve for controlling the passage of water from one end of the easmg, of a shell connected with the casing and comprising a smaller inner shell whereby an approximately annular space is provided between the inner and outer shells, the inner shell forming in efi'ect s continuation of said casing, means for su plying air within the inner shell, means or controlling the passage of material from the inner shell to the outer shell, means for discharging water from the lower end of the outer shell, a valve for controlling the the last named means, and means to move the last named valve, includili' a lever havin one end thereof pivotalljv connected wit one side ofthe outer shell and extending across the inner shell and provided at its free end with a float.

2. In an air compressor, the combination with a hydraulic ram structure, of an air pressure storage tank having communication therewith, a pipe to sup ly air to the upper portion of said hydraulic ram structure, a check valve to control one end of said pipe, and a valve to regulate the amount, of air passing through said pipe when thecheck valve-is open.

3. In an air compressor, the combination with a hydraulic ram structure, of a receptacle having communication therewith, means for supplying air within said bydraulic ram structure, and means actuated by the pressure within said receptacle to regulate the amount of air passing through the first named means.

4. In an air compressor, the combination with a hydraulic ram structure, of a receptacle having communication therewith, means for supplying air within said hydraulic ram structure, a valve to regulate the amount of air passin through said means, a cylinder connecte to and having communication with said receptacle, a pis ton to operate within said cylinder, and means connecting said piston and valve.

5. In an air compressor, the combination with a hydraulic ram structure, of a receptacle having communication therewith,

i with'aal hydraulic ram structure, of a re- 'ram structure,

l munication with said receptacle, :1 piston to "pipe' for supp a pipe for supplying air to the hydraulic a valve to regulate the amount of air passing through said pipe. :1 g cylimier connected to and having conioperate within said cylinder, means connecting said piston and valve, and a spring to oppose the movement of said piston caused by pressure in said receptacle.

6. In anair compressor, the combination with a. hydraulic ram structure, of a receptacle having communication therewith, a pi e for supplying air within said hydrau ic'ii m structure, a valve to regulate the aniount of air passing through said pipe, :1 cylinder connected to and having communication with said receptacle, a pistion to operate within said cy inclen, means connecting said piston and valve, a sprin ,to oppose the movement of said piston, and means to cha'nge the tension of said spring.

7. In an air compressor, the combination communication therewith, a ying air to said hydraulic means for regulating the amonnt'oi air passing throu 'h said me, a val'veior controllin the distiharge 0 water from said recept-ac e, and means toiniove ceptacle havin ramstructure,

said valve.

B. In an air compressor, the combination with a hydraulic ram structure, of a -redeptacle ,having communication therewith, a pipe for supplying air to'saidihydraulic ram'structure, means actuated by the pressure, within said receptacle to vary the amount of air passing through said pipe, :1

valve to control the discharge of water from said receptacle, and a float to move said valve.

9. In an air compressor, the combination with a hydraulic rain structure, of a receptacle connected therewith, com arising ,inner and outer walls, the inner Iva] forming in effect a continuation of said hydraulic ram structure, a head for closing the opening of the inner wall, valves for com trollingthe passage of air'through said head, means to supply air to the interior of said inner wall, a valve'to control the discharge of water fromtlie space formed between the inner and outer walls of said receptacle, and a float disposed within said space to move said valve.

10. In an air compressor, with a tank, of a second tank disposed therein, means for controlling the communication between the first and second .named tanks, a pipe for supplying air with in the second named tank, a valve to control the combination the amount of air passing through 'said" means actuatedby the pressure within iirst named tank to move said valve, and

the

means to compress air within the'seco'nd named tank. 1. In testimony whereof we afiix our s1gnatures in presence of two w tnesses.

STIRLING B; HILL.

CLIMIE E. HILL. 3 WILLIAM R.

-Witnesses:

O. B. Post), H. C. Arrnsoa'm. 

